Recent advances in parallel architectures for the numerical simulation of natural black oil reservoirs have allowed the simulation of very discretized domains. As a consequence, these simulations produce an unprecedented volume of data, which must be visualized in 3D environments for careful analysis and inspection of the model. Conventional scientific visualization techniques of such very large models are not viable, creating a demand for the development of scalable visualization solutions. The need for the visualization of such complex data introduces several computational issues which must be addressed in order to achieve interactive rendering rates, such as the impossibility of storing the entire data in main memory. There are two main research areas which propose solutions for the visualization of models with such magnitude: distributed rendering and multi-resolution techniques. This work proposes solutions for the visualization of massively complex reservoir models in each of these research areas, and a discussion over the advantages and limitations of each solution is made. In the first part of the work, we propose a distributed system based on a sort-last approach for the rendering of such models in PC clusters, where each PC is equipped with multiple GPUs. Given an efficient use of the available GPUs, combined with a pipelined implementation and the use of partial image compositions on the cluster nodes, our proposal tackles the scalability issues that arise when using mid-to-large GPU clusters. The second part of the work brings the proposal of a hierarchical multi-resolution structure of black oil reservoir meshes, with a new simplification algorithm designed specifically for such meshes. The hierarchical structure brings some new approaches in relation to related work, doing a much less conservative projected error estimation. We propose a minimum refresh rate guarantee strategy for our multiresolution rendering, which is the main goal for such systems. Afterwards, we introduce a proposal for the rendering of data associated with the original reservoir mesh mapped over the simplified meshes, such as the original model grid wireframe and reservoir properties. This proposal guarantees an independence between the multi-resolution structure and the properties generated by a simulation, which guarantees the reuse of the structure among several simulations of the same model. Experimental results demonstrate the effectiveness of the proposed solutions.